vmstate: fix missing ARRAY_OF_POINTERS support on save state

[qemu.git] / savevm.c

diff --git a/savevm.c b/savevm.c
index d6da050f367d700e83c8ac5708ef38c256625084..cafb9e7f0dec2521c627853a8325b55f354d2d25 100644 (file)
--- a/savevm.c
+++ b/savevm.c
@@ -959,13 +959,27 @@ const VMStateInfo vmstate_info_buffer = {
 
 static int get_unused_buffer(QEMUFile *f, void *pv, size_t size)
 {
-    qemu_fseek(f, size, SEEK_CUR);
-    return 0;
+    uint8_t buf[1024];
+    int block_len;
+
+    while (size > 0) {
+        block_len = MIN(sizeof(buf), size);
+        size -= block_len;
+        qemu_get_buffer(f, buf, block_len);
+    }
+   return 0;
 }
 
 static void put_unused_buffer(QEMUFile *f, void *pv, size_t size)
 {
-    qemu_fseek(f, size, SEEK_CUR);
+    static const uint8_t buf[1024];
+    int block_len;
+
+    while (size > 0) {
+        block_len = MIN(sizeof(buf), size);
+        size -= block_len;
+        qemu_put_buffer(f, buf, block_len);
+    }
 }
 
 const VMStateInfo vmstate_info_unused_buffer = {
@@ -1192,6 +1206,9 @@ void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
             for (i = 0; i < n_elems; i++) {
                 void *addr = base_addr + field->size * i;
 
+                if (field->flags & VMS_ARRAY_OF_POINTER) {
+                    addr = *(void **)addr;
+                }
                 if (field->flags & VMS_STRUCT) {
                     vmstate_save_state(f, field->vmsd, addr);
                 } else {